Use "development" as default workspace

Experience has told us that using local username as workspace is handy but we end up with tons of projects listed in GCP. Terraform and other infrastructure related deployment repo do not change that often to justify having separate development workspaces for each one of the members of the team. Thus, we have settle on having three default workspaces: "development", "staging", and "production".

For this reason, we want to move to have username as default workspace to have "development". Users of logan will still be able to use their own custom workspace using --workspace= but we'll encourage this to only happen when you are developing infrastructure.